Issues with ReadyNAS 2 Duo / RND2000 v1

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Steelbeak wrote:

I have been using RAIDar from the start (sorry for not mentioning that in the earlier post) and whilst the NAS is in the current "mode" (whatever it's doing at the moment), RAIDar is unable to detect it. My router isn't registering anything either, only my phone and computer is connected according to the router.

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I'd power down the NAS and try again.

What disks are you using?  Many 2 TB desktop drives (and unfortunately the current WD Red drives) are SMR, which often don't work well with RAID.  Note that WD Red Plus (and Pro) use CMR, as do all Seagate Ironwolf drives.

Note if you can remove the partitions from the disks, there is no need to go through the factory default/reset path via the boot menu.  If the disks are unformatted, the Duo will automatically do a factory install. 

If you can connect the disks to a Windows PC (either with SATA or a USB adapter/dock), you can remove the partitions using the Windows disk manager ("Create and format disk partitions" in the control panel).  

Personally, I always fully test new disks before putting them in my NAS using vendor tools (Seatools for Seagate, WD's older Lifeguard utility for WDC).  I run the full non-destructive test, and then a full erase test - sometimes the erase test will pick up issues that the non-destructive test misses, and vice versa.  Unfortuately the newer WD Dashboard utility no longer does the erase test.